string_func.py

print("Python string functions \n----------------------------\n")

st="string"

# can iterate string.like list , single line for loop with reversed
# for i in reversed(st): print(i) 

# print string riverse
print(st[::-1])

# print string  with index
print(st[2:4])

# convert string to list and voice versa
lst=list(st)
print(lst)
st="".join(lst)
print(st)

# replace a character in string
st1=st.replace('r','#')
print(st1)

# delete string 
# del st1

# Formatting of Strings
 
# Default order
String1 = "{} {} {}".format('Geeks', 'For', 'Life')
print("Print String in default order: ")
print(String1)
 
# Positional Formatting
String1 = "{1} {0} {2}".format('Geeks', 'For', 'Life')
print("\nPrint String in Positional order: ")
print(String1)
 
# Keyword Formatting
String1 = "{l} {f} {g}".format(g='Geeks', f='For', l='Life')
print("\nPrint String in order of Keywords: ")
print(String1)

# Extract sub string between 2 strings
str="my name will be some things better"
print(str)
s1=str.index("will")
s2=str.index("ing")
s3=""
print(s1,s2)

for i in range(s1+len('will'),s2):
    s3=s3+str[i]
print(s3)

#  or another method using str[4:5] method
print(str[str.index("will")+ len('will'):str.index("ing")])